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[188.36.149.75]) by smtp.gmail.com with ESMTPSA id v6-20020a5d6106000000b0034d743eb8dfsm4819405wrt.29.2024.05.03.16.46.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 May 2024 16:46:02 -0700 (PDT) From: =?utf-8?q?Barnab=C3=A1s_Cz=C3=A9m=C3=A1n?= Date: Sat, 04 May 2024 01:45:24 +0200 Subject: [PATCH 1/2] iio: imu: bmi160: add support for bmi120 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240504-bmi120-v1-1-478470a85058@gmail.com> References: <20240504-bmi120-v1-0-478470a85058@gmail.com> In-Reply-To: <20240504-bmi120-v1-0-478470a85058@gmail.com> To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, =?utf-8?q?Barnab=C3=A1s_Cz=C3=A9m=C3=A1n?= , Danila Tikhonov X-Mailer: b4 0.13.0 From: Danila Tikhonov Add support for bmi120 low power variant of bmi160. Signed-off-by: Danila Tikhonov Co-developed-by: Barnab=C3=A1s Cz=C3=A9m=C3=A1n Signed-off-by: Barnab=C3=A1s Cz=C3=A9m=C3=A1n --- drivers/iio/imu/bmi160/bmi160_core.c | 24 ++++++++++++++++++++---- drivers/iio/imu/bmi160/bmi160_i2c.c | 3 +++ drivers/iio/imu/bmi160/bmi160_spi.c | 3 +++ 3 files changed, 26 insertions(+), 4 deletions(-) diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/= bmi160_core.c index a77f1a8348ff..015801ad4d9a 100644 --- a/drivers/iio/imu/bmi160/bmi160_core.c +++ b/drivers/iio/imu/bmi160/bmi160_core.c @@ -26,6 +26,7 @@ #include "bmi160.h" =20 #define BMI160_REG_CHIP_ID 0x00 +#define BMI120_CHIP_ID_VAL 0xD3 #define BMI160_CHIP_ID_VAL 0xD1 =20 #define BMI160_REG_PMU_STATUS 0x03 @@ -112,6 +113,11 @@ .ext_info =3D bmi160_ext_info, \ } =20 +const u8 bmi_chip_ids[] =3D { + BMI120_CHIP_ID_VAL, + BMI160_CHIP_ID_VAL, +}; + /* scan indexes follow DATA register order */ enum bmi160_scan_axis { BMI160_SCAN_EXT_MAGN_X =3D 0, @@ -704,6 +710,16 @@ static int bmi160_setup_irq(struct iio_dev *indio_dev,= int irq, return bmi160_probe_trigger(indio_dev, irq, irq_type); } =20 +static int bmi160_check_chip_id(const u8 chip_id) +{ + for (int i =3D 0; i < ARRAY_SIZE(bmi_chip_ids); i++) { + if (chip_id =3D=3D bmi_chip_ids[i]) + return 0; + } + + return -ENODEV; +} + static int bmi160_chip_init(struct bmi160_data *data, bool use_spi) { int ret; @@ -737,10 +753,10 @@ static int bmi160_chip_init(struct bmi160_data *data,= bool use_spi) dev_err(dev, "Error reading chip id\n"); goto disable_regulator; } - if (val !=3D BMI160_CHIP_ID_VAL) { - dev_err(dev, "Wrong chip id, got %x expected %x\n", - val, BMI160_CHIP_ID_VAL); - ret =3D -ENODEV; + + ret =3D bmi160_check_chip_id(val); + if (ret) { + dev_err(dev, "Wrong chip id %x\n", val); goto disable_regulator; } =20 diff --git a/drivers/iio/imu/bmi160/bmi160_i2c.c b/drivers/iio/imu/bmi160/b= mi160_i2c.c index a081305254db..d0ec5301ad9a 100644 --- a/drivers/iio/imu/bmi160/bmi160_i2c.c +++ b/drivers/iio/imu/bmi160/bmi160_i2c.c @@ -37,6 +37,7 @@ static int bmi160_i2c_probe(struct i2c_client *client) } =20 static const struct i2c_device_id bmi160_i2c_id[] =3D { + {"bmi120", 0}, {"bmi160", 0}, {} }; @@ -52,12 +53,14 @@ static const struct acpi_device_id bmi160_acpi_match[] = =3D { * the affected devices are from 2021/2022. */ {"10EC5280", 0}, + {"BMI0120", 0}, {"BMI0160", 0}, { }, }; MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match); =20 static const struct of_device_id bmi160_of_match[] =3D { + { .compatible =3D "bosch,bmi120" }, { .compatible =3D "bosch,bmi160" }, { }, }; diff --git a/drivers/iio/imu/bmi160/bmi160_spi.c b/drivers/iio/imu/bmi160/b= mi160_spi.c index 8b573ea99af2..9f40500132f7 100644 --- a/drivers/iio/imu/bmi160/bmi160_spi.c +++ b/drivers/iio/imu/bmi160/bmi160_spi.c @@ -34,18 +34,21 @@ static int bmi160_spi_probe(struct spi_device *spi) } =20 static const struct spi_device_id bmi160_spi_id[] =3D { + {"bmi120", 0}, {"bmi160", 0}, {} }; MODULE_DEVICE_TABLE(spi, bmi160_spi_id); =20 static const struct acpi_device_id bmi160_acpi_match[] =3D { + {"BMI0120", 0}, {"BMI0160", 0}, { }, }; MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match); =20 static const struct of_device_id bmi160_of_match[] =3D { + { .compatible =3D "bosch,bmi120" }, { .compatible =3D "bosch,bmi160" }, { }, }; --=20 2.45.0